Originally unveiled at the 2013 Dubai Motor Show, the Devel Sixteen made waves with its audacious claims: a 12.3-liter quad-turbocharged V16 engine capable of producing an astonishing 5000 ...

Preposterous, you think. Absurd pipe dreaming. But Dubai-based Devel Sixteen has released a video of its quad turbo, 12.3-litre V16 (built by Steve Morris Engines) on a dyno producing 4515bhp and ...

But, of course, none of this has actually been proven. The Devel Sixteen’s track-based version is also said to produce over 5,000bhp. Sadly, this too falls a bit short on legitimacy.